Derivative Action in PID Control Without Noise Problems
Learn what derivative action contributes to a PID loop, why it can amplify measurement noise and setpoint changes, and how filtering, sampling, and staged tests make D tuning safer.
Manufacturer: ABB
Product No.: DSSR 122
Country of origin:Sweden
Product Type: DC/DC Power Supply Unit
Barcode: 8537101190
Payment: T/T, Western Union
Weight: 2350g
Dimensions: 23.9 x 16.2 x 7.2 cm
Shipping port: Xiamen
Warranty: 12 months
The ABB DSSR 122 (ordering number 4899 0001-NK / DSSR1229K) is an industrial DC/DC power regulator module designed for the ABB Advant OCS and Advant Master process control systems. It operates as a dedicated subrack power supply that converts an unregulated or battery-backed 24 VDC bus into a regulated 5 VDC logic supply delivering up to 40 A of continuous current.
Engineered for installation in Advant Controller subracks—including AC410, AC450, and DSRF 197 subrack chassis—the DSSR 122 provides low-noise logic power to central processing units, bus communication modules, and internal subrack backplanes. The unit accommodates an input operating window of 18 to 30 VDC with a maximum input power rating of 280 W, ensuring uninterrupted power conversion during plant DC distribution fluctuations.
| Parameter | Specification |
|---|---|
| Manufacturer | ABB |
| Model Designation | DSSR 122 (DSSR122 / DSSR1229K) |
| Product ID / Article Number | 4899 0001-NK (Exchange Number: EXC48990001-NK) |
| Module Type | DC/DC Regulator Power Supply Unit |
| Control System Architecture | ABB Advant OCS / Advant Master |
| Nominal Input Voltage | 24 VDC |
| Input Voltage Range | 18 to 30 VDC |
| Input Power Capacity | 280 W |
| Output Voltage | 5 VDC (regulated) |
| Output Current Rating | 40 A |
| Load Range | 1 to 40 A |
| Internal Spare Fuse | 20 A (P/N 5672827-20) |
| Operating Temperature | -5 degC to +55 degC |
| Dimensions (H x W x D) | 72.0 x 162.0 x 238.5 mm |
| Net Weight | 2.35 kg |
| Country of Origin | Sweden |
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| Country of origin |
Sweden
|